Pendant with the Royal Cypher of Tsar Ferdinand I

Breast Badge, 28 mm., GOLD, round medallion, the obverse with green, translucent enamel, bearing applied, golden cyrillic monogram of Tsar Ferdinand I under Bulgarian crown with long pendalia. Round loop and small suspension ring, smooth, slightly convex reverse.
A beautiful, rare, personal gift of the Tsar, from the early years of XX Century, excellent condition and very fine manufacture. I RR!